Differences in the SOX and SOX PSG lamps.
- PSG versions such as SOX and SOX E PSG PSG. have a Philips Solid-state Getter (PSG) for the highest reliability on the service life of the lamp SOX. This lamp was introduced in 2003 by Philips in order to avoid past failures. By an even (uniform) distribution of sodium in the discharge tube by means of dimples there is:
- Brought about a more stable discharge
- Better lumen
- A stable power - shorter start-up time,
- Higher efficiency and better lumen maintenance and longer lamp life.
The wrinkles are not the sodium remains divided better in the inner tube so that it is in the foot will collect and eventually cause cracks or leaks and the lamp would fail prematurely.
-SOX E (Economy) lamps are energy economical bulbs than standard SOX lamp, so more lumens per watt.